{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4ede6170310a928ecc81e701af9fad46e1fa426dbe6250e551f34f4be39e1cf4",
    "signature": "0x3df661d2d29f1b4116f231f33c403b50d446696ef10205a89739b797dd9a4c40754516d461cffd6e959e9d21703a8ee6f384290b1548473f672f93d882f533211c",
    "signer": "0xA34B3bD78D03f9068F43c5eB822004a3b9846962",
    "userId": "847061609"
  }
}